Thats my point. How can this data possibly be conclusive? Its an estimate at best and at worst its a gross understatement. Do you think they went in to every goat herder, child soldier, serbian butcher, etc. etc.'s house and turned over every matress and tore up the walls to see if they could find a firearm? That goat herder in one of the 'stans that has an ooolllld AK that hes not even sure works stashed in some hidden cubby hole in his house just in case... is not going to tell some westerner that he owns a firearm. Like I said at best its an estimate. Think about the SF guys that go in to a village in a "peaceful" tribe and find an arms stash big enough to wage a small war. I'm not saying that the conclusions drawn are incorrect, just that they are inconlusive.